/* BMWeb site chrome: the shared surface for install.html, files.html and
   docs.html. The app itself (index.html) keeps its own stylesheet; this is
   only for the pages around it.

   Tokens are the app's, unchanged, so the site and the tool read as one
   product. The look is flat and minimal: raised panels on a dark ground,
   no hairline boxes, amber used only where something is the primary action.

   The service worker treats .css as a shell request (network-first), so
   editing this file ships on the next deploy without a cache bump. */

:root {
  --bg: #0d1217;
  --surface: #141b22; /* raised panel */
  --surface-2: #182029; /* hover */
  --line: #1e2831;
  --ink: #e8edf2;
  --dim: #93a1ad;
  --faint: #5d6b78;
  --amber: #ff9e2c;
  --amber-hover: #ffb152;

  --sans:
    'Inter', ui-sans-serif, -apple-system, 'Segoe UI', system-ui, sans-serif;
  --mono: ui-monospace, 'SF Mono', Menlo, monospace;
  --r: 10px;
}

* {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  overflow-x: hidden;
  font: 400 16px/1.6 var(--sans);
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a {
  color: inherit;
}
:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap {
  width: 100%;
  max-width: 60rem;
  margin: 0 auto;
  padding: 0 24px;
}
.wrap-wide {
  max-width: 72rem;
}

/* ------------------------------------------------------------- masthead -- */
.masthead {
  padding: 22px 0;
}
.masthead-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.logo {
  width: 26px;
  height: 26px;
  flex: none;
}
.logo-ring {
  fill: none;
  stroke: var(--ink);
  stroke-width: 3;
}
.q-white {
  fill: #e8edf2;
}
.q-color {
  fill: var(--amber);
}
.name {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.015em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 12px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--dim);
  font-size: 14px;
  font-weight: 500;
  transition:
    color 0.15s ease,
    background-color 0.15s ease;
  white-space: nowrap;
}
.nav-btn:hover {
  color: var(--ink);
  background: var(--surface);
}
.nav-btn[aria-current='page'] {
  color: var(--ink);
  background: var(--surface);
}

/* --------------------------------------------------------------- typography -- */
.page-head {
  padding: clamp(40px, 6vw, 68px) 0 clamp(28px, 4vw, 40px);
  max-width: 46rem;
}
.page-head h1 {
  margin: 0 0 16px;
  font-size: clamp(30px, 4.4vw, 42px);
  line-height: 1.12;
  letter-spacing: -0.032em;
  font-weight: 600;
}
.page-head p {
  margin: 0;
  max-width: 36rem;
  color: var(--dim);
  font-size: 17px;
  line-height: 1.62;
}

/* ---------------------------------------------------------------- panels -- */
.panel {
  background: var(--surface);
  border-radius: var(--r);
  padding: 24px 26px;
}

/* ---------------------------------------------------------------- button -- */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 12px 18px;
  border-radius: 8px;
  border: 0;
  background: rgba(255, 255, 255, 0.06);
  color: var(--ink);
  font: 500 14.5px/1 var(--sans);
  letter-spacing: -0.01em;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color 0.15s ease,
    color 0.15s ease;
}
.btn:hover {
  background: rgba(255, 255, 255, 0.11);
}
.btn.solid {
  background: var(--amber);
  color: #11161c;
  font-weight: 600;
}
.btn.solid:hover {
  background: var(--amber-hover);
}
.btn.inline {
  width: auto;
  display: inline-flex;
}
.btn + .btn {
  margin-top: 10px;
}

/* ----------------------------------------------------------------- table -- */
.matrix {
  background: var(--surface);
  border-radius: var(--r);
  overflow: hidden;
}
.matrix-scroll {
  width: 100%;
  overflow-x: auto;
}
.matrix table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  min-width: 44rem;
}
.matrix thead th {
  padding: 15px 20px;
  font-size: 12px;
  font-weight: 500;
  color: var(--faint);
  letter-spacing: 0.01em;
  white-space: nowrap;
  border-bottom: 1px solid var(--line);
}
.matrix tbody th,
.matrix tbody td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  font-size: 14px;
}
.matrix tbody tr:last-child th,
.matrix tbody tr:last-child td {
  border-bottom: 0;
}
.matrix tbody th {
  font-weight: 500;
  color: var(--ink);
  text-align: left;
  white-space: nowrap;
}
.matrix tbody td {
  color: var(--dim);
}
.matrix tbody td.req {
  color: var(--faint);
  font-size: 13.5px;
}

/* ----------------------------------------------------------------- code -- */
.cmd {
  display: flex;
  gap: 8px;
  align-items: stretch;
  margin: 10px 0 2px;
}
.cmd code {
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  white-space: nowrap;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink);
  background: var(--bg);
  border-radius: 6px;
  padding: 10px 12px;
}
.cmd button {
  flex: none;
  cursor: pointer;
  font: 500 12.5px var(--sans);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.08);
  border: 0;
  border-radius: 6px;
  padding: 0 14px;
  min-height: 36px;
  transition: background-color 0.15s ease;
}
.cmd button:hover {
  background: rgba(255, 255, 255, 0.14);
}

/* --------------------------------------------------------------- footer -- */
.site-footer {
  padding: 32px 0 48px;
}
.footer-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 13.5px;
}
.site-footer a {
  text-decoration: none;
  color: var(--faint);
}
.site-footer a:hover {
  color: var(--dim);
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}